Herbs perennial, rhizomatous. Stems erect, ca. 70 cm tall, densely antrorse puberulent, unbranched, internodes slightly longer than leaves, ca. 6.5 cm at mid stem. Leaves deciduous basally; petiole ca. 1.5 cm at mid stem; leaf blade lanceolate-ovate, 4-5.5 × 2-5.5 cm, adaxially sparsely puberulent, abaxially very densely purple glandular, veins densely pubescent, base shallowly cordate, margin irregularly serrate, apex acuminate to caudate-acuminate. Racemes terminal and axillary, to 6 cm, few flowered, axillary racemes each with a basal pair of leaves; bracts lanceolate to linear, 0.4-1.3 cm × 1-4 mm, margin remotely dentate to entire. Pedicel to 3 mm, densely glandular puberulent. Calyx ca. 4 mm, densely glandular puberulent outside; scutellum ca. 1.5 mm. Corolla purple, ca. 1.3 cm, glandular pubescent outside, glabrous inside; tube erect, slightly saccate; middle lobe of lower lip ovate, ca. 4 mm wide, margin subentire; lateral lobes ovate, ca. 1.5 mm wide. Fl. May.
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